tags: relative size

tags: relative size
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Wildfires and particulate matter

Algebra Number Sense Math and Science Current events Data and probability
Wildfires in Canada have been spreading dangerous smoke pollution throughout much of North America. What is a dangerous size of particles per cubic meter (PM)? How tiny is th...

I bought toilet paper online

Algebra Number Sense Geometry Ratio and Proportion Funny
We needed more toilet paper at home but there wasn't any at the store. So, I ordered this online.  When it came I was surprised.  Read on ...

Microns and Masks

Algebra Number Sense Math and Science Math and Social Studies Current events Ratio and Proportion
  How big is one coronavirus? How big is a micron? How well do these masks protect against the virus? What can you observe about the size of particles mentioned? Why are we wearing masks?
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